Mill for crushing and grinding



A. P. NORTON.

Corn vand Cob Mill.

Patented ,April 25, 1848.

N. PETERa Pmw-Limugnphar. wuhlnglon. l1 c UNITED STATES PATENT OFFICE.

A. P. NORTON, OF PITTSBURGH, PENNSYLVANIA.

MILL FOR CRUSHING .AND GRINDING.

Specification of Letters Patent No. 5,533, dated April 25, 1848.

To all whom t may concern.'

Be it known that I, A. P. NORTON, of Pittsburgh, in the county ofAllegheny and State of Pennsylvania, have invented a new and lImprovedCorn and Gob Mill for Crushing and Grinding Corn with the Cobs; and dohereby declare the following to be a full, clear, and exact descriptionof the construction and operation thereof, reference being had to theaccompanying drawings, making a part of this specification, in which-Figure l is a perspective view; Fig. 2, a transverse section; Fig. 3, alongitudinal section; Fig. t, a perspective view of a part of the milldetached; and Figs. 5 and 6, are plans of parts of the mill detached.

Similar letters indicate like parts in all the figures.

A, is a conical serrated surface, suspended by, and rotating on thehorizontal axle The conical grinding surface A, terminates at itssmallest end in a. concave surface A, armed with strong radiating teeth,and at its largest end in a vertical flange, to which is bolted theserrated faced ring E.

C, is a hollow frustum of a cone, having a serrated surface on its innerside which corresponds with the conical grinding surface A, placedwithin the same. The hollow frustum O, terminates at its smallest end inthe cap M; and at its largest end in the annular radial projection P,and horizontal flange Q, as represented in Fig. 3.

N, is a lateral enlargement of the cap M, in which is placed the rollerB, having a concave toothed surface corresponding with the surface ofA', opposite which it is placed as shown in Figs. 3, and 5.

D, is a ring secured to the rear surface of the annular projection P,having a serrated surface corresponding with the ring E, opposite whichit is placed, as shown in Fig. 3.

G, is a circular plate, having a projecting horizontal flange whichembraces the flange Q, to which it is secured by screw bolts passingthrough the ears i, z'.

, J, J, are legs descending from the plate G, supporting the rear end ofthe mill.

the passage of the cobs and corn between the same and the rotatingsurface A. The teeth radiating from A, and B, are of such a length andshape that they pierce and cut the cobs up into short pieces. The cobsbeing thus cut into short pieces, pass with the corn upon them, betweenthe grinding surfaces of A, and C, where it is partially operated uponand crushed, thence it passes to the flat serrated surfaces between therings D, and E, which complete the operation of grinding and mixing thecorn and cobs thoroughly with each other, and discharge the same throughthe spout K. Then the rings D, and E, become dull, they can be removedand replaced by new ones. The space between the grinding surfaces can beadjusted in any well known or usual manner.

Having thus fully described my improved corn and cob mill, what I claimtherein as new, and desire to secure by Letters Patent, is-

The manner of cutting the cobs into short pieces and crushing andgrinding the same with the corn, by means of the rotating toothedconcave surface A, combined with the corresponding toothed concavesurface of the auxiliary roller B, and these two combined with conicalserrated surfaces A, and G, and the serrated rings D, and E,substantially in the manner herein set forth.

A. P. NORTON.

Witnesses:

Z. C. ROBBINS, GUY C. HUMPHRIES.

